A traditional mouse only has 2-3 buttons. What is is about people wanting to use mice whenever they have a perfectly good keyboard??!? The NERVE of those guys, daring to use another input device! Sheesh.
(for the record, I use a joypad with 10 programmable buttons, plus a D-Pad. WITH a mouse, and WITH a full size keyboard. Just because you have a third device for certain situations doesn't mean you stop using the other two. I could easily map in a Pedal and bind it to "Redistribute Shield & Fire All Weapons" if I was bothered enough...)
But wouldn't it be better to bind it to the throttle and use the brake pedal for stop and reverse.....
Please don't stop there... pick up a force feedback steering wheel and go all out!